Vertical Storage Tank Height Diameter Ratio

Basically it depends on local juricdiction which defines mx height of storage tank.

Vertical storage tank height diameter ratio.

The temperature stratified storage tank is unique in that its water depth is rather shallow 5 m while the tank diameter is quite wide 290 m 2. Temperature stratified storage tank outline and features. Say for atmospheric water storage tanks length greater than diameter or diameter greater than length is preferred. Does l d ratio also varies with increase in tank capacities.

For example fresh amine storage tank. As a normal practice the l d ratio of atmospheric storage tank is considered within the limit of 0 5 to 1 1. Furthermore a distributor capable of temperature stratification is installed in the center. Tank sizes volume description rough diameter when h d 1 100 m3 small 5 m 100 1 000 m3 medium 5 10 m 1 000 10 000 m3 large 10 20 m 10 000 m3 very large 20 m larger than 200 000 m3 is that economical 60 m height and diameter limitations.

However it is noticed that for some tanks it doesn t follow this limit. What is the significance of choosing optimum l d ratio in atmospheric storage tanks. About the highest aspect ratio tanks that i have seen were shop built tanks 10 foot diameter and 38 feet high about 3 8 to 1 give some thought to allowing 3 to four feet minimum all around the tank. Decide upon the method of support for the tank ring wall and also consider performing a study of the ground to support the tank weight.

But api indirectly volume of the storage tank as it limits max shell thickness of storage tank shell course to 45 mm only. In india there is max height limitation for hc storage tanks is 20 mtrs. So no limitation on h d ratio as per api650 620.